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参数资料
型号： M37270EF-XXXSP
元件分类： 微控制器/微处理器
英文描述： 8-BIT, OTPROM, 8.1 MHz, MICROCONTROLLER, PDIP64
封装： 0.750 INCH, 1.78 MM PITCH, PLASTIC, SDIP-64
文件页数： 54/97页
文件大小： 1359K
代理商： M37270EF-XXXSP
MITSUBISHI MICROCOMPUTERS
M37270MF-XXXSP
M37270EF-XXXSP, M37270EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
55
(6) Memory for OSD
There are 2 types of memory for OSD : ROM for OSD (addresses
1080016 to 1567F16, 1800016 to 1E43F16) used to store character
dot data (masked) and RAM for OSD (addresses 080016 to 0FFF16)
used to specify the characters and colors to be displayed. The fol-
lowing describes each type of memory.
ROM for OSD (addresses 1080016 to 1567F16, 1800016 to
1E43F16)
The ROM for OSD contains dot pattern data for characters to be
displayed. To actually display the character code and the extra code
stored in this ROM, it is necessary to specify them by writing the
character code inherent to each character (code determined based
on the addresses in the ROM for OSD) into the RAM for OSD.
The OSD ROM of the character font has a capacity of 12800 bytes.
Since 40 bytes are required for 1 character data, the ROM can stores
up to 320 kinds of characters. The OSD ROM of the extra font has a
capacity of 1664 bytes. Since 52 bytes are required for 1 character
data, the ROM can stores up to 32 kinds of characters.
Data of the character font and extra font is specified shown in Figure
63.
Fig. 63. OSD character data storing form
OSD ROM address of character font data
AD16 AD15 AD14 AD13 AD12 AD11 AD10
AD9
AD8
AD7
AD6
AD5
AD4
AD3
AD2
AD1
AD0
Line number
Character code
Font bit
=
“0216” to “1516”
=
“0016” to “13F16”
=
0 : left font 1 : right font
OSD ROM
address bit
Line number/character
code/font bit
10
Line number
Character code
Font
bit
AD16
AD15 AD14 AD13 AD12
AD11 AD10
AD9
AD8
AD7
AD6
AD5
AD4
AD3
AD2
AD1
AD0
11
0
00
0216
000016
7FF016
7FF816
601C16
600C16
0916
0316
0416
0516
0616
0716
0816
0A16
601C16
7FF816
7FF016
630016
638016
61C016
60E016
607016
1116
0B16
0C16
0D16
0E16
0F16
1016
603816
601C16
600C16
000016
1516
1216
1316
1416
b0
b7
b0
b7
0216
000316
0916
0316
0416
0516
0616
0716
0816
0A16
000316
1116
0B16
0C16
0D16
0016
1016
000316
1516
1216
1316
1416
b0
b7
b0
b7
FFFF16
FFFE16
000016
1916
1616
1716
1816
0016
0116
FFFE16
FFFF16
Line number
Extra code
Font bit
=
“0016” to “1916”
=
“0016” to “1F16”
=
0 : left font 1 : right font
OSD ROM
address bit
Line number/extra code
/font bit
Extra code
Line
number
Left
font
Right
font
Line
number
Data in
OSD
ROM
Left
font
Right
font
Data in
OSD
ROM
OSD ROM address of extra font data
Character font
Extra font
Font
bit
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相关代理商/技术参数
参数描述
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M37270MF 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
M37270MF-100SP 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
M37270MF-101SP 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
M37270MF-103SP 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
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